DAT 5.8 GHZ DIELECTRIC ANTENNA Description The TOKO DAT is a circularly polarized dielectric antenna element specifically designed for 5.8 GHz ISM applications including Dedicated Sort-Range Communication (DSRC) systems such as Electronic Toll Collecting (ETC). Features Dimensions Miniature footprint: 13mm x 13mm Low profile: 3.5mm max. Center Frequency: 5820 MHz Bandwidth: ±50 MHz Peak Gain: 5.0 dBi (typ.) SWR: 2.0 max. Impedance: 50 Ω Operating temperature: -20°C to +85°C Storage temperature: -30°C to +90°C 0.5 max. 3.3 C2 1.2 13 13 0.9 ø0.84 • • • • • • • • • 3 3-R0.5 Units: mm Typical Characteristics 30 60 330 00 3 30 6 6 10 10 300 60 15 15 20 20 25 90 270 240 120 210 180 300 90 240 120 330 25 270 150 00 3 150 180 210 0° 0° 90° 270° 90° 180° October 2004 © 2004 TOKO America, Inc. All Rights Reserved Printed in USA 180° CF-243-DAT58 R-LOG1004A 1 DAT 5.8 GHZ DIELECTRIC ANTENNA Typical Characteristics SWR S11 SWR MRK(1) SWR MKR(2) SWR MKR(3) SWR 5 4 5.77GHz 1.29 5.82GHz 1.24 5.87GHz 1.23 3 V : 0.5/div(SWR) H : 100MHz/div 2 3 1 START 5.32GHz 1 2 STOP 6.32GHz Receiving Signal Response Over Frequency S21 log MAG 1 : 5.77GHz 2 : 5.82GHz 3 : 5.87GHz 2 1 3 V : 2dB/div H : 100MHz/div 2X START STOP 6GHz 5GHz The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. TOKO America, Inc. 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com October 2004 © 2004 TOKO America, Inc. All Rights Reserved Printed in USA CF-243-DAT58 R-LOG1004A 2